var createError = require('http-errors');
var express = require('express');
var path = require('path');
var cookieParser = require('cookie-parser');
var logger = require('morgan');




var saveRouter = require('./routes/save-document');
var questionRouter=require('./routes/question');
var delRouter=require('./routes/del-document');
var getMesRouter=require('./routes/getMes');
var getDocRouter=require('./routes/get-document');
var loginRouter=require('./routes/login');
var qiniuRouter=require('./routes/getQiniuToken');


var app = express();

//设置跨域访问  
app.all('*', function(req, res, next) {  
  res.header("Access-Control-Allow-Origin", "*");  
  res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, Connection, User-Agent, Cookie");  
  res.header("Access-Control-Allow-Methods","PUT,POST,GET,DELETE,OPTIONS");  
  res.header("X-Powered-By",' 3.2.1')   
  next();  
});  


// view engine setup
app.set('views', path.join(__dirname, 'views'));
app.set('view engine', 'pug');

app.use(logger('dev'));
app.use(express.json());
app.use(express.urlencoded({ extended: false }));
app.use(cookieParser());
app.use(express.static(path.join(__dirname, 'public')));



//设置路由
app.use('/savedoc', saveRouter);
app.use('/question',questionRouter);
app.use('/del',delRouter);
app.use('/getMes', getMesRouter);
app.use('/getDoc',getDocRouter);
app.use('/login',loginRouter);
app.use('/getQiniuToken',qiniuRouter);


// catch 404 and forward to error handler
app.use(function(req, res, next) {
  next(createError(404));
});

// error handler
app.use(function(err, req, res, next) {
  // set locals, only providing error in development
  res.locals.message = err.message;
  res.locals.error = req.app.get('env') === 'development' ? err : {};

  // render the error page
  res.status(err.status || 500);
  res.render('error');
});

module.exports = app;
